Headband



March 23 1926. 1,571,910.

- H. KOCH ET AL HEADB AN D Filed March 27, 1922 Z4 avwwmtozs wawm s w a w Patented Mar. 23, 1926.

P T 9 F Fl HENRY KOCH AND ADOLPH SCHONMANN, OF JAMAICA, NEW YORK, ASSIGNORS TO DIC'I'OGRAPH PRODUCTS CORPORATION, A CORPORATION OF VIRGINIA.

HEADIBAND.

Application filed March 27, 1922. Serial No. 546,971.

To all whom it may concern.

Be it known that we, HENRY K001i and ADoLPH SCHONMANN, citizens of the United States, residing at Jamaica, in the county of Queens and State of New York, have invented certain new and useful Improvements in Headbands, of which the following is a full, clear, and exact description.

This invention relates to head instruments,

9 and particularly to telephone head sets by means of which ear pieces may be resiliently held against the ears by a head strap. An object of the invention is to provide an improved head instrument of this type in which the ear pieces can be easily and quick- 1y adjusted through various extents upwardly and downwardly from the head strap and will be frictionally held in any of the adjusted positions; which can be largely manufactured from stock and sheet materials, which is vermin proof and sanitary; and which is exceedingly simple, light and inexpensive in construction. Y 7

Other objects and advantages will be apparent from the following description of an embodiment of the invention and the novel features will be particularly pointed out in claims.

In the accompanying drawing Fig. 1 is an elevation of a head set constructed in accordance with this invention;

Fig. 2 is'a sectional elevation of a portion of the same;

Fig. 3 is an inside end elevation of a portion of the same; and

Fig. 1 is a perspective of a union member and a portion of the connecting wires.

In the illustrated embodiment, a pair of union members 1 are provided, and each 0 member comprises a plate having ears 2 and 3 bent therefrom in the same direction and parallel to one another, and these ears are provided with aligned apertures 4 and 5.

The plate is also provided with arms 6 extending from'an edge thereof and making an acute angle to one another, the arms being on opposite sides of one of the ears 3 of the plate. Bow-shaped resilient metal wires 7 extend between and connect the union members to form a head strip, the wires 7 having angular ends '8 which pass through apertures 9 in the body of the plate 1 from the rear-face thereof. The arms 6 at their outer ends are bent rearwardly around the wires 7 so as to form sockets through which the wires pass. These sockets hold the wires firmly against the rear face of each union member and the engagement of the angular ends in the apertures in the members prevents removal of the wires endwise from the sockets. A rod 10 is disposed for sliding movement endwise of itself in the aligned apertures 4 and 5 of the ears of each union member, each rod at its lower end being riveted to the intermediate part of a resilient forked or semi-circular member 11. Pins 12 carried by the ends of each member 11 pro ject from the inner faces toward one another and serve as pivots which engage in suitable diametrically disposed recesses in a telephone recelver or car piece 13. Thus as each rod 10 is adjusted endwise in the union member the receiver or ear piece carried thereby will be adjusted vertically with respect to the head strip, and at the same time the receiver or car piece will be free to oscillate upon the pivots 12 so as to fit flatly against the ears, A headed screw 14 is threaded into the upper end of each rod 10 so as to provide a stop for limiting the downward adjustment of each rod 10 in its union member. A helical spring 15 fits closely around each rod 10 and is compressed between the ears 2 and 3 of the union member. This compression of the helical spring gives it a bias to buckle laterally so that the spring will frictionally grip the rod 10 and hold it in any of its endwise adjustable positions. If, however, the spring is distorted so as to have an arcuate axis and the same is forced over the rod 10 between the ears 2 and 3, it will be unnecessary to compress the same between the cars in order to cause the same to frictionally engage with the rod and hold it in adjusted positions. The friction of the spring upon the rod also holds the rod in all angular adjustments about its own axis. The forked member 11 at its connection to the lower end of the rod 10 is disposed obliquely of the head strap. In order that vermin may not enter the ends of the sleeving and conceal themselves therein until the set is transferred to the head of another person, the ends of the sleeving are cemented or otherwise suitably connected within metallic ferrules 18 which slide upon and at their unconnected ends fit closely the wires 7. The

head set is thus entirely vermin proof and sanitary.

In use, the parts are assembled as shown in Figure 1 and the set is placed upon the head with the wires 7 passing over the upper part of the head, the ends being sprung outwardly to accommodate the set to heads of different widths and to, cause the ear pieces to be resiliently held against the sides of the head. By grasping the union members and the rods 10 between the fingers, the rods may be adjusted vertically in either direction to raise or lower the receivers or ear pieces and bring them opposlte the ears of the wearer. The rods 10 may also oscillate about their longitudinal axes and the receivers or ear pieces may osc1llate upon thepivots 12 in order to accommodate the receivers'to the ears of the wearer skilled in the art within the and permit the receivers to lie flat against the ears. The wires 7 are resilient, and therefore they resiliently press the ear pieces or receivers against the ears of the wearer, and yield to permit the removal of the head set from the head of the operator. IVhenever the set is removed from the head, the helical springs will frictionally hold the rods 10 in the positions in which they have been adjusted so that when'the head set 18 re-applied to the same operator, further adjustment will be unnecessary. New adjust-- ments will only be necessary when the set is applied to the head of a different operator or listener. The union members may be stamped from sheet brass or other suitable material, and the wires 7 may be readily cut and provided with angular ends by machinery in a well-known manner, so that the set is exceedingly simple, non-expensive, durable and convenient. There will be no parts that catch in the hair of the operator during the various adjustments. The ferrules upon the ends of the sleeving makes the set vermin-proof and sanitary.

It will be obvious that various changes in the details and arran ement of parts in the embodiment herein described and illustrated for the purpose of explaining the nature of the invention, may he made by those principle and scope of the invention.

Claims:

1. In a telephone head set, a head stra having a pair of spaced bearings at eac side, a rod slidable endwise in each pair of said bearings, aihelical spring surrounding each rod and compressedbetween said bearings and frictionally engaging the rod, and a receiving ear piece attached to each rod.

2. In a telephone head set, a head strap having a pair of spaced bearings at each side,

a rod slidable endwise in each pair of said bearings, a helical spring closely fitting and surrounding each rod and compressed between the bearings through which the rod passes, said spring serving to frictionally engage the rod, and a telephone receiver attached to each, rod.

3. In a telephone head set, a headstrap having a pair of spaced bearings at each side, a rod slidable endwise in each pair of said bearings, a helical spring closely fitting and surrounding each rod and having a bias union members, a plurality of bow-shapedresilient wires extending between said members and anchored at their ends in said perforations to form a head strap, each of said union members having a pair of cars bent and extending laterally therefrom, each pair of cars having aligned apertures, a rod slidable endwise in each pair of aligned apertures and a receiving ear piece attached to each rod.

5. In a head set, a head strap having a pair of spaced bearings at one side, a rod slidable endwise in said bearings, a helical spring surrounding and closely fitting the rod between the bearings, said spring being biasedto buckle laterally so as to frictionally engage with the rod and hold it in adjusted positions, and means forattaching an ear piece to said rod.

6. In a head strap, a pair of union members each having apertures in the face thereof and arms extending from an edge thereof, bow-shaped resilient wires extending be tween said members and having angular bent laterally therefrom,-a rod sliding end-- wise in the apertures of said ears, and means for attaching an ear piece to said rod.

8. Ina head strap, a pair of union members each having apertures in the face thereof and arms extending from an edge thereof, bow-shaped resilient wires extending between said members and having angular ends entering said apertures, said arms being bent around the wires to form sockets through which the wires pass, one of said members having also spaced apertured ears bent laterally therefrom, a rod sliding endwise in the apertures of said ears, a helical spring surroundingsaid rod between the ears and biased to buckle laterally, and means for attaching an ear piece to said rod.

9. In a head set, a plurality ofresilient wires having corresponding ends connected to form a head strap, coverin sleeves through which the wires pass, an ferrules slidable upon the wires and in which the ends of the sleeving are secured to prevent entrance of vermin into the sleeving.

10. In a head set, a member extending over the head, a covering sleeve on said mem her, and ferrules, in which the ends of the sleeve are tightly secured, slidable upon the member and at their outer ends closely fitting the member.

In Witness whereof, we hereunto subscribe our signatures.

HENRY KOCH. ADOLPH SCHONMANN. 

